Tank reinforcing ring



July 4, 1939. A. o. MILLER TANK REINFORCING RING Filed Oct. 30, 1956 BUM" Patented July 4, 1939 Q UNITED STATES PATENT OFFlCE TANK REINFORCING RING Arthur 0. Miller, Youngstown, Ohio, assignor to The Petroleum Iron Works Gompany of Ohio, a corporation Application October 30, 1936, Serial No. 108,330

1 Claim. (Cl. 22(l--71) The invention relates to means for reinforcing relative to the radius of the ring or the contanks and similar cylindrical structures. In the tainer. In forming this ring the cut longitudiconstruction of cylindrical vessels subject to exnally of the ring is made so that one end, inditernal pressure it is commonly necessary to pro cated at it), may be moved inwardly so that the 5 vide reinforcing bands or rings on the interior ring can be slightly contracted when the said of the tank which should be forced into close ring is positioned at the proper point within the contact with the interior of the structure in order tank. When thus positioned it may be wedged to withstand strains exerted against the outer tightly into reinforcing position by forcing the side of the structure. Such reinforcing means end it, which is sprung inwardly, into wedging must be of fairly strong material. Steel and engagement with the adjacent end indicated at 10 angle iron rings of difierent construction are ii. With reference to Fig. 1, it will be seen that employed. Frequently a channel type of ring is when the ends are in this position a blow deused. It has been customary to split these rings livered radially outward against the end ill of at one point on a radial plane and then expand the will wedge it easily into firm reinforcthe ring against the wall so that the ends may ing position. 15 be snapped. together. This is a very difiicult In Figs. 3 and 4, I have shown the ring I as operation for the reason that the ring must be being formed of a similar channel iron construcforced into a rigid engagement with the wall of tion but the line of division where the ring is the tank or other structure before the ends can split is on a plane inclined relative to a longibe brought together. Also, clearance must be tudinai dienieirical plane passing through the 20 allowed between the abutting edges to allow When the split is thus formed, one end, them to pass each other; consequently, after indicated at ll, may be forced downwardly relainsertion, the edges do not butt metal to metal, tive to the adjacent end it to allow the ring to which is unsatisfactory. be contracted when it is inserted into working It is an object of the invention to form the position. When thus placed in position it may division along the split portion of the ring so be wedged tightly against the walls by driving 25 that they may be easily expanded into supportthe end ll upwardly, or the end l2 downwardly. ing position. or both, until the ring is in proper supporting I contemplate cutting the band longitudinally position. on an inclined plane so that when the ends of It will be observed that in both the embodi- 30 the rings are forced together so as to expand the ments of my invention the line of division where ring against-the walls of the tank a wedging the ring is cut is formed on an inclined plane action can be obtained without material difiiinstead of on a diametrical plane of the ring. culty. This allows the ends of the ring to be moved In the drawing herewith, Fig. l is a plan view apart so as to position the ring at the proper in transverse section through a tank having one point within the tank and when in such position 35 form of my reinforcing ring therein. the ends may be wedged together in an obvious Fig. 2 is a broken longitudinal section through manner to tighten the ring into position. The a tank or container with the reinforcing ring in forming of the ring in this manner makes it operating position. possible to assemble the parts in position with- 40 Fig. 3 is a top plan view of my ring taken out difliculty and materially decreases the cost through a section of the tank and showing a of assembling the structure. slightly different embodiment of the ring. What is claimed as new is:

Fig. 4 is a longitudinal section through a por- In combination with a cylindrical structure,

tion of the tank showing the manner in which inner reinforcing ring comprising a circular 45 the ring is moved into reinforcing position. band of heavy resilient material the outer diam- In Figs. 1 and 2 I have shown at 5 a cylindrical eter of which is the same as the inner diameter tank or container made up of sheet metal. This of said structure, said ring beiir split longituditank is shown as being reinforced internally by nally of the ring at one point, the split being on a band 6 of structural steel, the present ring a plane inclined relative to a diametrical plane 50 being made up of channel iron having an interior of the ring whereby the ends of said band may longitudinal web I and outwardly projecting be sprung together while said ring is inserted into radial flanges 8 at each end of the ring. working position and the ends at the split por- The ring I is shown in Fig. 1 as being divided tion then wedged together with force to expand longitudinally of the ring as indicated at 9. The said ring into reinforcing position. 55

line of division thus formed is on an inclination ARTHUR O. MILLER. 

